App Control: Previous Upgrade Attempt Failed with Irrecoverable Errors

Products

• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

Error received on App Control Server Upgrade:

Warning: Previous upgrade attempt failed with irrecoverable errors.
Full database restore is recommended before proceeding further.

Do you still want to continue without restoring your database?

Environment

• App Control Server: All Supported Versions

Cause

When App Control is upgrading it creates a configuration in the database named "tmp_dbupgrade_step". When the upgrade is done it removes this configuration. This error indicates that a previous upgrade attempt did not fully complete, therefor the flag was never removed.

Resolution

Perform a database restore from prior to the last upgrade attempt.

Additional Information

Serverinstall-<date>.log will show when the error occurred and during which part of the upgrade. Similar to the below:

UPGRADEDB: One of the steps in database upgrade failed (error executing migrate).